1. The problem statement, all variables and given/known data Find the vector combination R = A + 2B - C. Grid lines are separated by 1 cm. When you submit your answer the third vector that you drew may disappear, but if you are correct you will have a green check mark near the grid. (Mac OS X use Netscape, Windows use IE.) A scratch vector is provided for your use if needed. http://xs220.xs.to/xs220/07430/vectorhelp2.PNG [Broken] 2. Relevant equations none 3. The attempt at a solution A x=-3 y=2 B x=-1 y=-1 C x=-2 y=1 R x=-3 y=-1 I tried using the tip to tail method for joining the vectors, but it didn't work since the vectors don't fit. Maybe I have to use the parallelogram method here? I really have no idea. :( Any help is appriciated.